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Finding the Fourth Proportional to 7,398.45, 11,019.17 and 7,362.68

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Solution

The fourth proportional to 7,398.45, 11,019.17 and 7,362.68 is: 10,965.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,398.45 : 11,019.17 = 7,362.68 : x
  2. Step 2: Convert to fraction form
    7,398.45/11,019.17 = 7,362.68/x
  3. Step 3: Cross multiply
    7,398.45x = 11,019.17 × 7,362.68
  4. Step 4: Simplify right side
    7,398.45x = 81,130,585.89
  5. Step 5: Solve for x
    x = 81,130,585.89/7,398.45
  6. Step 6: Final answer
    x = 10,965.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.